“It works on my machine” is the oldest debugging excuse in the book — and half the time the real answer is the browser. Our free What Is My Browser tool reads your user-agent string and instantly reports your browser name and version, operating system, and whether you are on desktop, mobile or tablet. Support agents, developers and QA testers use it to stop guessing and start reproducing issues accurately.
It covers Chrome, Edge, Firefox, Safari and Opera across Windows, macOS, Linux, Android and iOS, and shows the raw user-agent string too — handy when a site behaves differently than the parsed result suggests, or when you need to paste the exact UA into a bug report. Detection happens entirely in your browser with one click; nothing is uploaded, no account is needed, and hitting Re-detect after a browser update refreshes the reading instantly.
🌐 What Is My Browser
See your browser name, version, operating system and user agent string.
How to use
- Open this page in the browser you want to identify.
- The tool detects your browser automatically on page load.
- Read the table: browser name and version, operating system, and device type.
- Copy the full user-agent string with the Copy button if you need it for a bug report.
- After updating your browser, click Re-detect to refresh the result.
FAQs
What is a user-agent string?
It is a line of text your browser sends every website, identifying itself — e.g. which browser and OS you use. Sites use it for analytics, compatibility tweaks and bot detection. This tool simply parses that string into human-readable fields.
Why does my browser show the wrong name or version?
Some browsers let extensions or privacy settings alter the user-agent, and a few (like Brave) deliberately mimic Chrome. The raw UA string shown below the table reveals exactly what sites see — compare it with the parsed result if something looks off.
Does this tool track me?
No. Parsing happens locally in your browser and nothing is transmitted or stored. Refreshing the page starts over with a blank slate.